The tea plantation of PTPN XII Wonosari Lawang is one of the subsectors of agriculture that has the potential to be a mainstay of food agro industry. Soil insect are insect that live on the ground, both living at up the ground as well as those contained in the soil. Soil insect has a variety of roles incluiding as herbivores, decomposers, predators, and detritivor, so the presence of soil insect are use indicators of ecosystem stability. This study was conducted to identify the soil insect, know the diversity index, know thr state of physico-chemical factor of soil and analyze the correlation of the number of soil insect with chemical physics factor in the tea plantation of PTPN XII Wonosari Lawang.

The research was carried out in the tea plantation of PTPN XII Wonosari Lwang in May until June 2016. The study was descriptive quantitative methods of exploration. Identification of soil insect conducted at the Ecology Laboratory and Optic Laboratory Department of Biology, Science and Technology Faculty, State Islamic Maulana Malik Ibrahim Malang. Analysis factor of physical-chemical soil in Soil Laboratory, Department of Agriculture, Brawijaya University. The data collection was done by using (Pittfal traps) amounted 30 pieces at each station. The data were analyzed using the Past 3.01 program, while the identification using Borror books, et al (1996), Suin (2012) and BugGuide.net (2016).